IOTA/IOTA-ES occultation update for (1381) Danubia / UCAC4 358-204071 event on 2024 Nov 15, 08:06 UT Visible from Summary ------- On 2024 Nov 15 UT, the 20.954 km diameter asteroid (1381) Danubia will occult a 11.9 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.00 mag to 16.84 mag (the magnitude of the asteroid) for at most 0.840 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 100 * date and approx. time of event: 2024 Nov 15, 08:03 - 2024 Nov 15, 08:09 * geocentric midpoint of event [JD]: 2460629.83756471 * magnitude of target star: 11.85 * magnitude drop [mag]: 5.00 * estimated maximum duration [s]: 0.840 * Moon: 99 % sunlit, 94° distance * Sun: 78° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 31 * 1 sigma uncertainty interval [path widths]: +/- 0.06 * 1 sigma uncertainty interval [seconds]: +/- 0.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.001", 70°) * approx speed of asteroid's shadow [km/s]: 25.0456 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 358-204071 by 1381 Danubia on 2024 Nov 15 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude 58 0 0 25 55 21 8 3 16.4 0 111 45 25 46 16 26 4 27 25 45 6 26 5 37 .... 59 0 0 25 35 23 8 3 16.5 1 111 46 25 26 21 25 44 28 25 25 11 25 45 38 -0.57 60 0 0 25 16 4 8 3 16.7 2 112 46 25 7 4 25 25 6 25 5 54 25 26 16 -0.80 61 0 0 24 57 23 8 3 17.0 3 112 46 24 48 25 25 6 24 24 47 16 25 7 33 -0.90 62 0 0 24 39 21 8 3 17.4 4 112 46 24 30 25 24 48 20 24 29 16 24 49 29 -0.95 63 0 0 24 21 59 8 3 17.9 5 113 46 24 13 4 24 30 55 24 11 56 24 32 4 -0.98 64 0 0 24 5 15 8 3 18.5 6 113 47 23 56 22 24 14 10 23 55 14 24 15 18 -1.01 65 0 0 23 49 11 8 3 19.3 7 114 47 23 40 20 23 58 4 23 39 12 23 59 12 -1.02 66 0 0 23 33 47 8 3 20.1 8 114 47 23 24 57 23 42 38 23 23 49 23 43 46 -1.03 67 0 0 23 19 2 8 3 21.0 9 115 47 23 10 14 23 27 52 23 9 7 23 29 0 -1.04 68 0 0 23 4 58 8 3 22.1 10 115 47 22 56 12 23 13 47 22 55 4 23 14 54 -1.05 69 0 0 22 51 35 8 3 23.2 11 115 47 22 42 49 23 0 21 22 41 42 23 1 29 -1.06 70 0 0 22 38 51 8 3 24.4 12 116 46 22 30 8 22 47 37 22 29 1 22 48 44 -1.06 71 0 0 22 26 49 8 3 25.8 13 116 46 22 18 6 22 35 33 22 17 0 22 36 40 -1.07 72 0 0 22 15 27 8 3 27.2 14 117 46 22 6 46 22 24 10 22 5 39 22 25 17 -1.07 73 0 0 22 4 47 8 3 28.7 14 117 46 21 56 6 22 13 28 21 55 0 22 14 35 -1.08 74 0 0 21 54 47 8 3 30.3 15 118 46 21 46 8 22 3 28 21 45 2 22 4 35 -1.08 75 0 0 21 45 29 8 3 32.1 16 118 45 21 36 51 21 54 9 21 35 44 21 55 15 -1.08 76 0 0 21 36 52 8 3 33.9 17 119 45 21 28 15 21 45 31 21 27 8 21 46 37 -1.09 77 0 0 21 28 57 8 3 35.8 18 119 45 21 20 20 21 37 35 21 19 14 21 38 41 -1.09 78 0 0 21 21 43 8 3 37.8 19 120 44 21 13 7 21 30 20 21 12 1 21 31 26 -1.09 79 0 0 21 15 11 8 3 39.9 20 120 44 21 6 35 21 23 47 21 5 30 21 24 54 -1.09 80 0 0 21 9 20 8 3 42.1 21 121 43 21 0 46 21 17 56 20 59 40 21 19 2 -1.10 81 0 0 21 4 12 8 3 44.4 21 121 43 20 55 38 21 12 47 20 54 32 21 13 53 -1.10 82 0 0 20 59 45 8 3 46.7 22 122 43 20 51 11 21 8 20 20 50 6 21 9 26 -1.10 83 0 0 20 56 0 8 3 49.2 23 122 42 20 47 27 21 4 35 20 46 21 21 5 41 -1.10 84 0 0 20 52 58 8 3 51.7 24 123 42 20 44 25 21 1 32 20 43 19 21 2 38 -1.10 85 0 0 20 50 37 8 3 54.3 25 123 41 20 42 4 20 59 12 20 40 59 21 0 18 -1.10 86 0 0 20 48 59 8 3 57.0 26 124 40 20 40 26 20 57 33 20 39 21 20 58 39 -1.11 87 0 0 20 48 3 8 3 59.8 26 124 40 20 39 30 20 56 37 20 38 25 20 57 43 -1.11 88 0 0 20 47 49 8 4 2.6 27 125 39 20 39 16 20 56 23 20 38 11 20 57 29 -1.11 89 0 0 20 48 18 8 4 5.5 28 126 39 20 39 45 20 56 52 20 38 39 20 57 58 -1.11 90 0 0 20 49 29 8 4 8.5 29 126 38 20 40 56 20 58 3 20 39 50 20 59 9 -1.11 91 0 0 20 51 22 8 4 11.6 29 127 37 20 42 49 20 59 57 20 41 43 21 1 3 -1.11 92 0 0 20 53 58 8 4 14.8 30 128 37 20 45 24 21 2 33 20 44 18 21 3 39 -1.11 93 0 0 20 57 16 8 4 18.0 31 129 36 20 48 42 21 5 51 20 47 36 21 6 57 -1.11 94 0 0 21 1 16 8 4 21.3 32 129 35 20 52 42 21 9 52 20 51 36 21 10 59 -1.11 95 0 0 21 5 59 8 4 24.6 32 130 34 20 57 24 21 14 36 20 56 18 21 15 42 -1.11 96 0 0 21 11 25 8 4 28.1 33 131 34 21 2 49 21 20 2 21 1 43 21 21 9 -1.12 97 0 0 21 17 33 8 4 31.5 34 132 33 21 8 56 21 26 11 21 7 50 21 27 17 -1.12 98 0 0 21 24 23 8 4 35.1 34 133 32 21 15 46 21 33 2 21 14 40 21 34 9 -1.12 99 0 0 21 31 56 8 4 38.7 35 133 31 21 23 18 21 40 36 21 22 12 21 41 43 -1.12 100 0 0 21 40 12 8 4 42.4 35 134 30 21 31 32 21 48 52 21 30 26 21 49 59 -1.12 101 0 0 21 49 9 8 4 46.1 36 135 30 21 40 29 21 57 51 21 39 23 21 58 58 -1.12 102 0 0 21 58 50 8 4 49.9 36 136 29 21 50 8 22 7 33 21 49 2 22 8 40 -1.12 103 0 0 22 9 12 8 4 53.7 37 137 28 22 0 29 22 17 56 21 59 23 22 19 3 -1.12 104 0 0 22 20 17 8 4 57.6 37 138 27 22 11 33 22 29 2 22 10 26 22 30 10 -1.12 105 0 0 22 32 4 8 5 1.5 38 139 26 22 23 19 22 40 51 22 22 11 22 41 58 -1.12 106 0 0 22 44 33 8 5 5.5 38 140 25 22 35 46 22 53 21 22 34 39 22 54 29 -1.12 107 0 0 22 57 44 8 5 9.5 39 141 24 22 48 56 23 6 34 22 47 48 23 7 42 -1.12 108 0 0 23 11 37 8 5 13.6 39 142 23 23 2 47 23 20 28 23 1 39 23 21 37 -1.12 109 0 0 23 26 12 8 5 17.7 40 144 23 23 17 20 23 35 5 23 16 12 23 36 13 -1.12 110 0 0 23 41 28 8 5 21.8 40 145 22 23 32 35 23 50 23 23 31 27 23 51 32 -1.12 111 0 0 23 57 26 8 5 26.0 40 146 21 23 48 31 24 6 23 23 47 23 24 7 32 -1.12 112 0 0 24 14 6 8 5 30.2 41 147 20 24 5 9 24 23 4 24 4 0 24 24 13 -1.12 113 0 0 24 31 26 8 5 34.4 41 148 19 24 22 27 24 40 27 24 21 18 24 41 36 -1.12 114 0 0 24 49 28 8 5 38.7 41 150 18 24 40 27 24 58 31 24 39 18 24 59 40 -1.12 115 0 0 25 8 10 8 5 43.0 41 151 17 24 59 7 25 17 15 24 57 58 25 18 25 -1.12 116 0 0 25 27 33 8 5 47.3 41 152 16 25 18 28 25 36 40 25 17 18 25 37 51 -1.12 117 0 0 25 47 36 8 5 51.6 41 153 15 25 38 29 25 56 46 25 37 19 25 57 56 -1.12 118 0 0 26 8 19 8 5 55.9 42 155 14 25 59 9 26 17 31 25 57 59 26 18 42 -1.12 119 0 0 26 29 42 8 6 0.3 42 156 13 26 20 30 26 38 57 26 19 19 26 40 8 -1.12 120 0 0 26 51 44 8 6 4.6 42 157 12 26 42 29 27 1 1 26 41 18 27 2 13 -1.12 121 0 0 27 14 26 8 6 9.0 42 159 11 27 5 8 27 23 45 27 3 57 27 24 57 -1.12 122 0 0 27 37 45 8 6 13.4 42 160 10 27 28 25 27 47 8 27 27 13 27 48 20 -1.12 123 0 0 28 1 43 8 6 17.7 42 161 9 27 52 20 28 11 8 27 51 8 28 12 21 -1.13 124 0 0 28 26 19 8 6 22.1 41 163 8 28 16 53 28 35 47 28 15 41 28 37 0 -1.13 125 0 0 28 51 32 8 6 26.5 41 164 7 28 42 3 29 1 3 28 40 50 29 2 16 -1.13 126 0 0 29 17 21 8 6 30.8 41 165 6 29 7 50 29 26 55 29 6 36 29 28 9 -1.13 127 0 0 29 43 47 8 6 35.2 41 167 5 29 34 12 29 53 24 29 32 59 29 54 38 -1.13 128 0 0 30 10 48 8 6 39.5 41 168 4 30 1 10 30 20 28 29 59 57 30 21 43 -1.13 129 0 0 30 38 24 8 6 43.8 40 169 3 30 28 43 30 48 8 30 27 29 30 49 22 -1.13 130 0 0 31 6 35 8 6 48.1 40 171 2 30 56 51 31 16 21 30 55 36 31 17 36 -1.13 131 0 0 31 35 19 8 6 52.3 40 172 1 31 25 32 31 45 9 31 24 17 31 46 24 -1.13 132 0 0 32 4 36 8 6 56.5 39 173 0 31 54 45 32 14 29 31 53 30 32 15 45 -1.13 133 0 0 32 34 25 8 7 0.7 39 175 -1 32 24 30 32 44 21 32 23 15 32 45 37 -1.13 134 0 0 33 4 44 8 7 4.9 38 176 -2 32 54 47 33 14 44 32 53 31 33 16 1 -1.13 135 0 0 33 35 35 8 7 9.0 38 177 -3 33 25 34 33 45 38 33 24 17 33 46 55 -1.13 136 0 0 34 6 54 8 7 13.0 38 178 -4 33 56 50 34 17 1 33 55 32 34 18 19 -1.13 137 0 0 34 38 42 8 7 17.1 37 180 -5 34 28 34 34 48 53 34 27 17 34 50 11 -1.13 138 0 0 35 10 58 8 7 21.0 36 181 -6 35 0 46 35 21 12 34 59 28 35 22 31 -1.13 139 0 0 35 43 40 8 7 24.9 36 182 -7 35 33 24 35 53 57 35 32 6 35 55 17 -1.13 140 0 0 36 16 47 8 7 28.8 35 183 -8 36 6 28 36 27 8 36 5 9 36 28 28 -1.13 141 0 0 36 50 18 8 7 32.6 35 184 -8 36 39 55 37 0 43 36 38 36 37 2 3 -1.13 142 0 0 37 24 12 8 7 36.3 34 185 -9 37 13 46 37 34 41 37 12 26 37 36 2 -1.13 143 0 0 37 58 28 8 7 40.0 33 187 -10 37 47 58 38 9 1 37 46 38 38 10 22 -1.13 144 0 0 38 33 5 8 7 43.6 33 188 -11 38 22 31 38 43 41 38 21 10 38 45 3 -1.13 145 0 0 39 8 0 8 7 47.1 32 189 -12 38 57 22 39 18 40 38 56 1 39 20 2 -1.13 146 0 0 39 43 13 8 7 50.5 31 190 -13 39 32 32 39 53 57 39 31 10 39 55 19 -1.13 147 0 0 40 18 42 8 7 53.9 31 191 -14 40 7 57 40 29 30 40 6 35 40 30 53 -1.13 148 0 0 40 54 26 8 7 57.1 30 192 -15 40 43 38 41 5 17 40 42 15 41 6 41 -1.13 149 0 0 41 30 24 8 8 0.3 29 193 -16 41 19 31 41 41 19 41 18 8 41 42 43 -1.13 150 0 0 42 6 33 8 8 3.4 28 194 -17 41 55 37 42 17 32 41 54 14 42 18 56 -1.13 151 0 0 42 42 53 8 8 6.5 28 195 -17 42 31 53 42 53 55 42 30 29 42 55 20 -1.13 152 0 0 43 19 21 8 8 9.4 27 196 -18 43 8 18 43 30 27 43 6 54 43 31 53 -1.13 153 0 0 43 55 57 8 8 12.2 26 197 -19 43 44 51 44 7 7 43 43 26 44 8 33 -1.13 154 0 0 44 32 38 8 8 15.0 25 198 -20 44 21 29 44 43 51 44 20 3 44 45 18 -1.13 155 0 0 45 9 24 8 8 17.6 24 199 -21 44 58 11 45 20 40 44 56 45 45 22 7 -1.13 156 0 0 45 46 11 8 8 20.1 24 200 -21 45 34 55 45 57 31 45 33 28 45 58 58 -1.13 157 0 0 46 22 59 8 8 22.6 23 201 -22 46 11 40 46 34 22 46 10 13 46 35 50 -1.13 158 0 0 46 59 46 8 8 24.9 22 202 -23 46 48 24 47 11 12 46 46 57 47 12 40 -1.13 159 0 0 47 36 31 8 8 27.2 21 202 -24 47 25 5 47 48 0 47 23 38 47 49 28 -1.13 160 0 0 48 13 11 8 8 29.4 20 203 -24 48 1 42 48 24 43 48 0 15 48 26 12 -1.13 161 0 0 48 49 45 8 8 31.4 19 204 -25 48 38 14 49 1 20 48 36 46 49 2 49 -1.13 162 0 0 49 26 11 8 8 33.4 19 205 -26 49 14 38 49 37 49 49 13 9 49 39 18 -1.13 163 0 0 50 2 28 8 8 35.2 18 206 -26 49 50 52 50 14 8 49 49 23 50 15 38 -1.13 164 0 0 50 38 35 8 8 37.0 17 207 -27 50 26 56 50 50 17 50 25 27 50 51 47 -1.13 165 0 0 51 14 28 8 8 38.6 16 208 -27 51 2 48 51 26 13 51 1 18 51 27 43 -1.13 166 0 0 51 50 8 8 8 40.2 15 209 -28 51 38 25 52 1 54 51 36 56 52 3 25 -1.13 167 0 0 52 25 32 8 8 41.7 15 209 -29 52 13 48 52 37 21 52 12 18 52 38 52 -1.13 168 0 0 53 0 40 8 8 43.1 14 210 -29 52 48 53 53 12 30 52 47 23 53 14 1 -1.13 169 0 0 53 35 28 8 8 44.3 13 211 -30 53 23 41 53 47 20 53 22 10 53 48 51 -1.13 170 0 0 54 9 57 8 8 45.5 12 212 -30 53 58 8 54 21 50 53 56 38 54 23 22 -1.13 171 0 0 54 44 5 8 8 46.6 11 213 -31 54 32 15 54 55 59 54 30 44 54 57 31 -1.14 172 0 0 55 17 51 8 8 47.7 11 214 -31 55 6 0 55 29 46 55 4 29 55 31 18 -1.14 173 0 0 55 51 13 8 8 48.6 10 215 -31 55 39 21 56 3 8 55 37 50 56 4 40 -1.14 174 0 0 56 24 10 8 8 49.4 9 215 -32 56 12 18 56 36 6 56 10 47 56 37 38 -1.14 175 0 0 56 56 41 8 8 50.2 8 216 -32 56 44 49 57 8 38 56 43 18 57 10 10 -1.14 176 0 0 57 28 46 8 8 50.9 7 217 -33 57 16 53 57 40 43 57 15 22 57 42 15 -1.14 177 0 0 58 0 23 8 8 51.5 7 218 -33 57 48 30 58 12 20 57 46 59 58 13 52 -1.14 178 0 0 58 31 31 8 8 52.0 6 219 -33 58 19 39 58 43 28 58 18 8 58 45 0 -1.15 179 0 0 59 2 10 8 8 52.5 5 220 -34 58 50 19 59 14 6 58 48 48 59 15 38 -1.15 180 0 0 59 32 19 8 8 52.9 5 221 -34 59 20 28 59 44 15 59 18 57 59 45 46 -1.15 -179 0 0 60 1 58 8 8 53.3 4 221 -34 59 50 7 60 13 52 59 48 37 60 15 24 -1.16 -178 0 0 60 31 5 8 8 53.5 3 222 -34 60 19 15 60 42 58 60 17 45 60 44 29 -1.17 -177 0 0 60 59 40 8 8 53.8 2 223 -35 60 47 52 61 11 32 60 46 22 61 13 3 -1.18 -176 0 0 61 27 43 8 8 53.9 2 224 -35 61 15 56 61 39 33 61 14 26 61 41 5 -1.20 -175 0 0 61 55 14 8 8 54.0 1 225 -35 61 43 29 62 7 2 61 41 59 62 8 33 -1.23 -174 0 0 62 22 12 8 8 54.1 1 226 -35 62 10 28 62 33 58 62 8 59 62 35 29 -1.37 -173 0 0 .. .. .... .. .. .. .. .. .. 62 36 55 .. .. .. 62 35 26 .. .. .. .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 358-204071 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 54 45.5169 DE: -18 35 20.381 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 54 45.5168 DE: -18 35 20.382 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.9 * B mag [mag]: 12.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1381) Danubia asteroid class: approx. diameter [km]: 21 approx. diameter ["]: 0.014 distance from Earth [AU]: 2.10460 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#46 date of fit: 2023 Apr 24 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.015", 0.001", 69.744° remarks: * orbital elements for (1381)Danubia : Mean anomaly = 329.5729522394 deg Arg. of pericenter = 29.4100968957 deg Long. of node = 351.7673063938 deg Inclination = 4.6966821942 deg Eccentricity = 0.1804361692 Semimajor axis = 2.4883707568 AU Perihelion dist = 2.0393786700 AU Mag: H = 12.38, G = 0.15 Epoch of elements : MJD 60629.33756450 TDT (2024 Nov 15.3376) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#462023Apr24,0.84,2024,11,15,8.101553,-0.266638,0.697190,13.205164,5.046084,0.005175,0.001462,0.000000,0.000000 137.6109,-18.4955,54.64,-18.64,False UCAC4 358-204071,20.91264362,-18.5889947,12.44,11.85,11.53,0.0,0,,20.93602257,-18.4955005,5.00,4.87,0,0,0 1381,Danubia,16.84,20.954,2.1046,0,0,3.879,21.09,,1.6,0 0,329.4882,2024,11,15,29.4101,351.7673,4.6967,0.18044,2.48837,2.03938,12.37,5.0,0.15 1.064,0.0147,0.0009,70,0.0009,Known errors,1.60,0,-1,-1 20241115_204071,60140.70 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:47 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org